Cybersecurity Portfolio – Marilena Mosialou

This repository showcases hands-on cybersecurity labs and real-world attack simulations performed in controlled environments.

🔐 Skills Demonstrated

• Active Directory Security & Attacks
• Incident Response & Log Analysis
• Network Traffic Analysis (Wireshark, TCPDump)
• Vulnerability Scanning (Nessus, OpenVAS)
• Web Application Security Testing (OWASP Top 10)
• Phishing Analysis

🧰 Tools & Technologies

Operating Systems:

• Windows Server
• Kali Linux

Security Tools:

• Wireshark
• Burp Suite
• Nessus / OpenVAS
• BloodHound
• Mimikatz
• Impacket

SIEM & Logging:

• Splunk / ELK Stack

Scripting:

• PowerShell
• Bash

📂 Projects

🔴 Active Directory Attack Lab

Simulating real-world Active Directory attacks including privilege escalation and credential abuse.
➡️ View Project

🟡 SOC Incident Investigation

Investigating security events using logs and identifying malicious activity.
➡️ View Project

🔵 Network Traffic Analysis

Analyzing packet captures to detect suspicious behavior.
➡️ View Project

🟠 Vulnerability Scanning Lab

Identifying and analyzing vulnerabilities using scanning tools.
➡️ View Project

🟣 Web App Security Testing

Testing applications against OWASP Top 10 vulnerabilities.
➡️ View Project

⚪ Email Threat Analysis Lab

Investigating real-world email threats including phishing and business email compromise (BEC), using header analysis, domain validation, and threat intelligence tools to identify indicators of compromise and assess risk.
➡️ View Project

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🎯 Goal

To demonstrate practical, job-ready cybersecurity skills through hands-on labs and documented attack scenarios.

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🚀 What Makes This Portfolio Different

• Focus on both offensive (attacks) and defensive (detection & mitigation) techniques
• Includes real-world attack simulations in controlled lab environments
• Emphasis on log analysis and detection strategies
• Detailed documentation with step-by-step execution and screenshots

📫 Contact

• LinkedIn: link